Q. The compound(s) that is(are) removed as slag during the extraction of copper is :
(1) $C a O$
(2) $F e O$
(3) $A l_{2} O_{3}$
(4) $Z n O$
(5) $N i O$
Choose the correct answer from the options given below :

190 136 JEE MainJEE Main 2022General Principles and Processes of Isolation of Elements Report Error

(3) (4) Only

Solution: